Descendants of Darkness (Yami no Matsuei) 1

Blurb: "As a Guardian of Death, Asato Tsuzuki has a lot to think about. First of all, there are all those dead people. Someone's got to escort them safely to the afterlife. Then there's all that bureaucracy. The affairs of death come with a lot of paperwork, budgetary concerns and endless arcana. Combining supernatural action with heavy dollops of romance, sex and humor, Descendants of Darkness proves one thing: Death is big business...and business is good!"